syslogd and exim cron job every 20 minutes

[Arcady Genkin <antipode@thpoon.com>]

How would I get rid of the message about exim cron job being printed
at /dev/xconsole?  This job runs every 20 minutes and I would like not
to see reports of it unless there was an error.

,----[ /dev/xconsole ]
| Jan 20 14:38:01 tea /USR/SBIN/CRON[5850]: (mail) CMD ( if [ -x \
|      /usr/sbin/exim -a -f /etc/exim.conf ]; then /usr/sbin/exim -q \
|      >/dev/null 2>&1; fi)
`----

I tried changing /etc/syslog.conf in several ways, but it seems like I
can't put my finger on just the right thing to say there.  I tried
putting "mail.!*" and "cron.!*" into the last rule (the one that ends
in "|/dev/xconsole"), but it doesn't do the trick.

Any input greately appreciated!
-- 
Arcady Genkin
Don't read everything you believe.